Determination of Diffusion Coefficients of Lithium in Solid Electrolyte LiPON

A structural model of LiPON solid electrolyte, containing elements that simulate drift conductivity, diffusion and leakage current was proposed. The dependence the impedance on frequency calculated, parameters at which theoretical curve best approximates experimental Nyquist diagrams were determined. Based these data, ion coefficient conductivity are D1 = 1.5 × 10−11 cm2/s σ 1.9 10−6 S/cm, respectively.